Downgrade dependencies on minimum versions build

crossbeam-rs · Oct 15, 2019 · 4dce6d7 · 4dce6d7
1 parent 5b5d727
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diff --git a/.travis.yml b/.travis.yml
@@ -16,24 +16,31 @@ matrix:
   - rust: 1.28.0
     name: "crossbeam on 1.28.0"
     script: ./ci/crossbeam.sh
+    before_script: ./ci/downgrade-dependencies.sh
   - rust: 1.26.0
     name: "crossbeam-channel on 1.26.0"
     script: ./ci/crossbeam-channel.sh
+    before_script: ./ci/downgrade-dependencies.sh
   - rust: 1.28.0
     name: "crossbeam-deque on 1.28.0"
     script: ./ci/crossbeam-deque.sh
+    before_script: ./ci/downgrade-dependencies.sh
   - rust: 1.26.0
     name: "crossbeam-epoch on 1.26.0"
     script: ./ci/crossbeam-epoch.sh
+    before_script: ./ci/downgrade-dependencies.sh
   - rust: 1.26.0
     name: "crossbeam-queue on 1.26.0"
     script: ./ci/crossbeam-queue.sh
+    before_script: ./ci/downgrade-dependencies.sh
   - rust: 1.28.0
     name: "crossbeam-skiplist on 1.28.0"
     script: ./ci/crossbeam-skiplist.sh
+    before_script: ./ci/downgrade-dependencies.sh
   - rust: 1.26.0
     name: "crossbeam-utils on 1.26.0"
     script: ./ci/crossbeam-utils.sh
+    before_script: ./ci/downgrade-dependencies.sh
 
   # Test crates on nightly Rust.
   - rust: nightly

diff --git a/ci/downgrade-dependencies.sh b/ci/downgrade-dependencies.sh
@@ -0,0 +1,5 @@
+# lazy_static 1.4 requires Rust 1.27+
+# and cfg-if 1.10 requires Rust 1.31+ so downgrade it.
+- cargo generate-lockfile
+- cargo update -p cfg-if --precise 1.9
+- cargo update -p lazy_static --precise 1.3